.box {
  overflow: hidden;
  min-height: 500px;
  .box-main {
    width: 1200px;
    margin: 0 auto;
    color: #444;
    font-size: 16px;
    .main-hero {
      background: #fff;
      min-height: 300px;
      padding: 10px;
      color: #000;
      .row-left {
        //flex: 0 0 58.333333%;
        //max-width: 58.333333%;

        text-align: center;
        img {
          width: 680px;
        }
      }
      .row-right {
        -ms-flex: 0 0 41.666667%;
        flex: 0 0 41.666667%;
        max-width: 41.666667%;

        padding-left: 20px;
        h1 {
          font-size: 34px;
          margin-bottom: 20px;
          margin-top: 30px;
        }
        p {
          line-height: 30px;
          margin-bottom: 20px;
          margin-top: 20px;
        }
        p.describe {
          color: #787878;
        }
        .list-describe {
          line-height: 2;
          padding-bottom: 10px;
          border-bottom: 1px #ccc solid;
          color: #444;
          span {
            display: inline-block;
            color: #787878;
            width: 200px;
          }
        }
      }
    }
    .main-title {
      text-align: center;
      font-size: 40px;
      color: #283ca0;
      margin-bottom: 40px;

      font-weight: 600;
    }
    .main-describe {
      padding: 2% 5%;
      background: #f9f9f9;
      .info {
        margin-top: 15px;
        padding: 0 20px;
        color: #000;
        h3 {
          font-size: 20px;
          line-height: 2;
        }
        h3.title {
          margin-top: 20px;
        }
        p {
          line-height: 1.7;
          color: #a6a6a6;
          font-size: 16px;
        }
        .video {
          margin-top: 30px;
          h3 {
            display: inline-block;
            font-size: 16px;
            padding: 8px 20px;
            background: #283ca0;
            border-radius: 50px;
            a {
              color: #fff;
              text-decoration: none;
            }
          }
        }
      }
    }
    //证书列表
    .main-list {
      .list {
        .item-box:last-child {
          margin-top: 60px;
        }
        .item-box {
          display: flex;
          justify-content: space-between;
          .item {
            width: 33%;
            img {
              width: 100%;
            }
            p {
              text-align: center;
              padding: 10px;
              font-size: 18px;
            }
          }
        }
      }
    }
  }
}

.row {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .box {
    .box-main {
      width: 100%;
      .main-hero {
        .row-left {
          img {
            width: 100%;
          }
        }
        .row-right {
          flex: none;
          max-width: 100%;

          margin: 0 15px;
          padding: 15px;
          font-size: 14px;
          line-height: 24px;
          h1 {
            font-size: 16px;
            text-align: center;
          }
        }
      }
      .main-title {
        color: #283ca0;
        font-size: 18px;
      }

      .main-describe {
        .info {
          h3 {
            font-size: 16px;
            color: #000;
            line-height: 2;
          }
          p {
            font-size: 12px;
            color: #999999;
            line-height: 2;
          }
          .video {
            margin-top: 10px;
            margin-left: 5px;
            h3 {
              padding: 5px 10px;
              font-size: 12px;
            }
          }
        }
      }
      .main-list {
        .list {
          .item-box {
            display: block;
            .item {
              width: 100%;
            }
          }
        }
      }
    }
  }
}
